10-news-10 about Expo 2015

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In last 2-3 weeks my Google Reader subscription for Expo news returned an impressive amount of stuff; I decided to select and post here 10 of them.
Feel free to follow my Google Reader shared items @ http://tinyurl.com/y86jrso but be informed I also share a lot of things not related to Expo 2015 (mainly broadband, health, food & wine and techy).